Anti rotational device for down hole hydraulic pumping unit

Details Anti rotational device for down hole hydraulic pumping unit Anti rotational device for down hole hydraulic pumping unit

1985-06-28

1987-01-20

Novosad, Stephen J.

Wells

With below and above ground modification

Above ground actuating means for below ground device

166 775, 403168, 74 21, E21B 4312

Patent

active

046374590

ABSTRACT:
An anti rotational device is illustrated for use in a down hole pumping unit operated by a sucker rod driven by a hydraulic pump, fixing the cylinder rod of the hydraulic pump while permitting rotation of the sucker rod driven thereby.

REFERENCES:
patent: 688220 (1901-12-01), Zink
patent: 1649078 (1927-11-01), Ratigan

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